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Schiff Bases and Triazolothiadiazines Derived from A Thiophene-Substituted 4-Amino-3-Mercapto-1,2,4-Triazole

Schiff Bases and Triazolothiadiazines Derived from A Thiophene-Substituted... Abstract4-Amino-5-(thiophen-2-ylmethyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione was synthesized and converted into the corresponding Schiff bases using several aromatic aldehydes. Reaction of this aminotriazolethione with phenacyl bromides lead to triazolothiadiazines, which were subsequently reduced with NaBH4 to dihydrotriazolothiadiazines. The latter type of fused heterocycle has been also obtained directly by reacting one of the previously obtained Schiff base with phenacyl bromides. NMR analysis confirmed the structures of the synthesized compounds. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Chemica Iasi de Gruyter

Schiff Bases and Triazolothiadiazines Derived from A Thiophene-Substituted 4-Amino-3-Mercapto-1,2,4-Triazole

Acta Chemica Iasi , Volume 27 (2): 18 – Dec 1, 2019

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Publisher
de Gruyter
Copyright
© 2019 Gheorghe Roman, published by Sciendo
ISSN
2067-2446
eISSN
2067-2446
DOI
10.2478/achi-2019-0011
Publisher site
See Article on Publisher Site

Abstract

Abstract4-Amino-5-(thiophen-2-ylmethyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione was synthesized and converted into the corresponding Schiff bases using several aromatic aldehydes. Reaction of this aminotriazolethione with phenacyl bromides lead to triazolothiadiazines, which were subsequently reduced with NaBH4 to dihydrotriazolothiadiazines. The latter type of fused heterocycle has been also obtained directly by reacting one of the previously obtained Schiff base with phenacyl bromides. NMR analysis confirmed the structures of the synthesized compounds.

Journal

Acta Chemica Iaside Gruyter

Published: Dec 1, 2019

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